Move test to web-components-v0-only

This test is a V0 only test.

This was suggested by a comment in [1].

[1] https://chromium-review.googlesource.com/c/chromium/src/+/2208386/3/third_party/blink/web_tests/fast/dom/shadow/disconnected-distribution-cycle.html#15

Bug: 937746
Change-Id: I9fdf4620f36d6f44d8451d7529d2d605f52453dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2225824Reviewed-by: Stephen Chenney <schenney@chromium.org>
Commit-Queue: Mason Freed <masonfreed@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774319}

third_party/blink/web_tests/fast/dom/shadow/disconnected-distribution-cycle-expected.txt → third_party/blink/web_tests/web-components-v0-only/fast/dom-shadow/disconnected-distribution-cycle-expected.txt

+CONSOLE WARNING: line 15: Element.createShadowRoot is deprecated and will be removed in M80, around February 2020. Please use Element.attachShadow instead. See https://www.chromestatus.com/features/4507242028072960 and https://developers.google.com/web/updates/2019/07/web-components-time-to-upgrade for more details.
 Distributions from disconnected subtrees should be cleared when inserted again to avoid cycles.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

third_party/blink/web_tests/fast/dom/shadow/disconnected-distribution-cycle.html → third_party/blink/web_tests/web-components-v0-only/fast/dom-shadow/disconnected-distribution-cycle.html

@@ -12,14 +12,14 @@
 
     // Put "a" it into a disconnected element with a shadow root with an insertion point.
     var host = document.createElement("div");
-    var content = host.attachShadow({mode: 'open'}).appendChild(document.createElement("content"));
+    var content = host.createShadowRoot().appendChild(document.createElement("content"));
     host.appendChild(a);
 
     // Cause a distribution of "a" into the disconnected host.
     a.getDestinationInsertionPoints();
 
     // Distribute "a" into a host in the page.
-    b.attachShadow({mode: 'open'}).appendChild(document.createElement("content"));
+    b.createShadowRoot().appendChild(document.createElement("content"));
     b.appendChild(a);
 
     // Cause an attach of all elements in the page.